单词	go down the pit
释义	go down the pit 下矿
随便看	personal practice theory personal praise personal predictor personal preference personal preferences personal preference schedule personal prejudice personal-prejudice models personal preparation personal presence Personal Printer Data Stream personal rapid transit personal rapid transit system personal rapid transport system personal ratio personal rationality personal ratio station personal reaction time personal privacy personal privacy protection personal/private correspondence personal/private debt personal/private mail personal private representative personal probability